Nobody can ever understand the madness of having multiples, but I really like the 7. They're for personal use. I live in Los Angeles and Santa Barbara. I like getting into my second or third car and having everything be in the usual places. When you like something really, really well, or shall I say, when I like something REALLY, really well, I buy a few of them with just slight variations.
Don't try to make sense of it, there is no sense to be made of it, just appreciate it